Not had one of these for a while... I'm using Q6 on an intel iMac C2D 2.0Ghz. Running under Rosetta it's been fine for the first three weeks, then it started corrupting preferences and quitting on open. This was solved each time by deleting my user preferences file and and opening again. Now, it won't even open despite trashing preferences over and over. I've now reinstalled and reactivated three times, but with the same results. I've also cleared out font caches. One thing I tried that worked was setting up a new account and opening Quark in it. This worked - I still got an error message early on but it worked anyway. However, this doesn't really help as all my stuff is on the other account... It must be something unique to my user (main admin) account but I don't know what. I can post a bug report if anyone's any good at deciphering them? Cheers in advance!